Skills/PyPI/crypto-sentiment-x402-mcp

crypto-sentiment-x402-mcp@0.2.0

VERIFIED· not started

Publisher claims: "Crypto news sentiment MCP server: bullish/bearish/neutral label, score and the headlines behind it for 24 coins, hourly history, 24h sentiment movers and a free market-wide sentiment index, paid per call in USDC on Base via x402. Use when an agent needs current, hourly or market-wide news sentiment for crypto, or which coins' sentiment is shifting." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher whatevercat-creator · publishing for 52 daysInstalls 251Last detonated 5d ago
$claude mcp add crypto-sentiment-x402-mcp -- uvx crypto-sentiment-x402-mcp
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
CDP_API_KEY_IDCDP_API_KEY_SECRETConfiguration, not credentials: CDP_WALLET_NAME, MAX_SPEND_USD_PER_SESSION, SENTIMENT_API_URL, SENTIMENT_PAY_TO, X402_NETWORK
Where it talks to
no vendor host named in the codeAlso coinbase.com, onrender.com, base.org — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names coinbase.com, onrender.com, base.org as well as its own vendor. The guard injects CDP_API_KEY_ID, CDP_API_KEY_SECRET only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- uvx crypto-sentiment-x402-mcp

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-10 and scored it 93/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

No findings across 1,574 lines in 15 files.

Cost to the agent

Instructions loaded
≈130 tok
1 file · 15 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for crypto-sentiment-x402-mcp@0.2.0 as of 4d ago. This is the package itself, not its dependencies.